First layer waves appearing  

First layer waves appearing

Hello only been printing for about 2 months or so.

Printer: MK3 I3
Firmware: latest recently updated
Troubleshooting done
Adjusted layer height
Re configured XYZ calibration and okayed.
Using default ASA print settings. Bed temp increased to 110 and 115c due to first layer not sticking at start of print at 100c
Both Belt's tension seems fine.

I was printing with PETG then changed back to ASA and I started to see micro blobs start to forum on the brims. This is the first time that I have seen this issue. The the under side of the brim isn't touching the bed were the small blobs are showing on the top so there is a consent wave pattern that is affecting bed adhesion. these didn't show up when I printed with PETG. The parts I am printing have to be printed straight up and the parts have a slight curve and are narrow so the brim is required.

I have printed these parts before on this printer without issue.